Mercurial > gemma

annotate pkg/controllers/user.go @ 486:b2dc9c2f69e0 metamorph-for-all

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First stab to use the metamorphic db to do all database stuff.
author Sascha L. Teichmann <sascha.teichmann@intevation.de>
date Fri, 24 Aug 2018 13:56:06 +0200
parents fc37e7072022
children 8a0737aa6ab6
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63dd5216eee4 Refactored gemma server to be more REST-like.
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1 package controllers
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2
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3 import (
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4 "database/sql"
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5 "fmt"
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6 "net/http"
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7
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8 "github.com/gorilla/mux"
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9
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10 "gemma.intevation.de/gemma/pkg/auth"
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11 "gemma.intevation.de/gemma/pkg/models"
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12 )
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13
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14 const (
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15 createUserSQL = `INSERT INTO users.list_users
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16 VALUES ($1, $2, $3, $4, NULL, $5)`
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17 createUserExtentSQL = `INSERT INTO users.list_users
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18 VALUES ($1, $2, $3, $4,
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19 ST_MakeBox2D(ST_Point($5, $6), ST_Point($7, $8)), $9)`
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20
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21 updateUserUnprivSQL = `UPDATE users.list_users
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22 SET (pw, map_extent, email_address)
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23 = ($2, ST_MakeBox2D(ST_Point($3, $4), ST_Point($5, $6)), $7)
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24 WHERE username = $1`
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25 updateUserSQL = `UPDATE users.list_users
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26 SET (rolname, username, pw, country, map_extent, email_address)
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27 = ($2, $3, $4, $5, NULL, $6)
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28 WHERE username = $1`
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29 updateUserExtentSQL = `UPDATE users.list_users
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30 SET (rolname, username, pw, country, map_extent, email_address)
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31 = ($2, $3, $4, $5, ST_MakeBox2D(ST_Point($6, $7), ST_Point($8, $9)), $10)
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32 WHERE username = $1`
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33
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34 deleteUserSQL = `DELETE FROM users.list_users WHERE username = $1`
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35
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36 listUsersSQL = `SELECT
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37 rolname,
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38 username,
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39 country,
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40 email_address,
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41 ST_XMin(map_extent), ST_YMin(map_extent),
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42 ST_XMax(map_extent), ST_YMax(map_extent)
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43 FROM users.list_users`
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44
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45 listUserSQL = `SELECT
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46 rolname,
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47 country,
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48 email_address,
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49 ST_XMin(map_extent), ST_YMin(map_extent),
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50 ST_XMax(map_extent), ST_YMax(map_extent)
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51 FROM users.list_users
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52 WHERE username = $1`
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53 )
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54
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55 func deleteUser(
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56 _ interface{}, req *http.Request,
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57 db *sql.Conn,
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58 ) (jr JSONResult, err error) {
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59
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60 user := mux.Vars(req)["user"]
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61 if !models.UserName(user).IsValid() {
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62 err = JSONError{http.StatusBadRequest, "error: user invalid"}
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63 return
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64 }
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65
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66 session, _ := auth.GetSession(req)
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67 if session.User == user {
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68 err = JSONError{http.StatusBadRequest, "error: cannot delete yourself"}
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69 return
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70 }
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71
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72 var res sql.Result
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73
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74 if res, err = db.ExecContext(req.Context(), deleteUserSQL, user); err != nil {
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75 return
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76 }
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77
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78 if n, err2 := res.RowsAffected(); err2 == nil && n == 0 {
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79 err = JSONError{
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80 Code: http.StatusNotFound,
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81 Message: fmt.Sprintf("Cannot find user %s.", user),
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82 }
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83 return
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84 }
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85
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86 // Running in a go routine should not be necessary.
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87 go func() { auth.ConnPool.Logout(user) }()
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88
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89 jr = JSONResult{Code: http.StatusNoContent}
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90 return
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91 }
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92
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93 func updateUser(
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94 input interface{},
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95 req *http.Request,
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96 db *sql.Conn,
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97 ) (jr JSONResult, err error) {
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98
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99 user := models.UserName(mux.Vars(req)["user"])
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100 if !user.IsValid() {
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101 err = JSONError{http.StatusBadRequest, "error: user invalid"}
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102 return
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103 }
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104
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105 newUser := input.(*models.User)
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106 var res sql.Result
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107
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108 if s, _ := auth.GetSession(req); s.Roles.Has("sys_admin") {
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109 if newUser.Extent == nil {
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110 res, err = db.ExecContext(
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111 req.Context(),
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112 updateUserSQL,
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113 user,
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114 newUser.Role,
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115 newUser.User,
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116 newUser.Password,
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117 newUser.Country,
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118 newUser.Email,
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119 )
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120 } else {
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121 res, err = db.ExecContext(
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122 req.Context(),
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123 updateUserExtentSQL,
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124 user,
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125 newUser.Role,
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126 newUser.User,
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127 newUser.Password,
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128 newUser.Country,
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diff changeset
129 newUser.Extent.X1, newUser.Extent.Y1,
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130 newUser.Extent.X2, newUser.Extent.Y2,
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131 newUser.Email,
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diff changeset
132 )
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133 }
237
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134 } else {
328
003243ec5ce5 Don't crash if we doing update as unprivileged user without a bounding box.
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diff changeset
135 if newUser.Extent == nil {
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parents: 327
diff changeset
136 err = JSONError{http.StatusBadRequest, "extent is mandatory"}
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diff changeset
137 return
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diff changeset
138 }
486
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diff changeset
139 res, err = db.ExecContext(
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diff changeset
140 req.Context(),
327
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diff changeset
141 updateUserUnprivSQL,
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142 user,
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143 newUser.Password,
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144 newUser.Extent.X1, newUser.Extent.Y1,
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diff changeset
145 newUser.Extent.X2, newUser.Extent.Y2,
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146 newUser.Email,
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parents: 326
diff changeset
147 )
235
7d1f0ffdfa41 Implemented /users update controller.
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diff changeset
148 }
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parents: 226
diff changeset
149
311
74559e12a59f sql.Result.RowsAffected is a driver specific feature. Check
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diff changeset
150 if err != nil {
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diff changeset
151 return
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diff changeset
152 }
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diff changeset
153
74559e12a59f sql.Result.RowsAffected is a driver specific feature. Check
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diff changeset
154 if n, err2 := res.RowsAffected(); err2 == nil && n == 0 {
307
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parents: 288
diff changeset
155 err = JSONError{
750a9c9cd965 Use SQL UPDATE to update users
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parents: 288
diff changeset
156 Code: http.StatusNotFound,
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parents: 288
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157 Message: fmt.Sprintf("Cannot find user %s.", user),
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parents: 288
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158 }
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parents: 288
diff changeset
159 return
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parents: 288
diff changeset
160 }
186
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parents:
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161
261
ab9859981ee3 If a user got renamed kick her/him from the connection pool.
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162 if user != newUser.User {
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diff changeset
163 // Running in a go routine should not be necessary.
418
c70ddc6eb168 Don't allow user names to contain any of the following characters \"':;
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parents: 414
diff changeset
164 go func() { auth.ConnPool.Logout(string(user)) }()
261
ab9859981ee3 If a user got renamed kick her/him from the connection pool.
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165 }
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parents: 257
diff changeset
166
237
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diff changeset
167 jr = JSONResult{
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diff changeset
168 Code: http.StatusCreated,
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parents: 235
diff changeset
169 Result: struct {
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parents: 235
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170 Result string `json:"result"`
314
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diff changeset
171 }{"success"},
237
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172 }
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parents: 235
diff changeset
173 return
3771788d3dae Reduce boilerplate code when writing JSON parsing/generating endpoints.
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parents: 235
diff changeset
174 }
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parents: 235
diff changeset
175
3771788d3dae Reduce boilerplate code when writing JSON parsing/generating endpoints.
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parents: 235
diff changeset
176 func createUser(
486
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parents: 442
diff changeset
177 input interface{},
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parents: 442
diff changeset
178 req *http.Request,
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parents: 442
diff changeset
179 db *sql.Conn,
237
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parents: 235
diff changeset
180 ) (jr JSONResult, err error) {
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parents: 235
diff changeset
181
442
fc37e7072022 Moved some models used in controllers to to model package because they may be needed elsewhere (e.g. GeoServer config).
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parents: 425
diff changeset
182 user := input.(*models.User)
186
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parents:
diff changeset
183
237
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parents: 235
diff changeset
184 if user.Extent == nil {
486
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parents: 442
diff changeset
185 _, err = db.ExecContext(
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parents: 442
diff changeset
186 req.Context(),
237
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parents: 235
diff changeset
187 createUserSQL,
243
d39f897fae16 Made models for email, user and country driver.Valuer to get rid of some conversions.
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parents: 241
diff changeset
188 user.Role,
237
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parents: 235
diff changeset
189 user.User,
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parents: 235
diff changeset
190 user.Password,
243
d39f897fae16 Made models for email, user and country driver.Valuer to get rid of some conversions.
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parents: 241
diff changeset
191 user.Country,
d39f897fae16 Made models for email, user and country driver.Valuer to get rid of some conversions.
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parents: 241
diff changeset
192 user.Email,
237
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parents: 235
diff changeset
193 )
3771788d3dae Reduce boilerplate code when writing JSON parsing/generating endpoints.
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parents: 235
diff changeset
194 } else {
486
b2dc9c2f69e0 First stab to use the metamorphic db to do all database stuff.
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parents: 442
diff changeset
195 _, err = db.ExecContext(
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parents: 442
diff changeset
196 req.Context(),
237
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parents: 235
diff changeset
197 createUserExtentSQL,
243
d39f897fae16 Made models for email, user and country driver.Valuer to get rid of some conversions.
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parents: 241
diff changeset
198 user.Role,
237
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parents: 235
diff changeset
199 user.User,
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parents: 235
diff changeset
200 user.Password,
243
d39f897fae16 Made models for email, user and country driver.Valuer to get rid of some conversions.
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parents: 241
diff changeset
201 user.Country,
237
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parents: 235
diff changeset
202 user.Extent.X1, user.Extent.Y1,
3771788d3dae Reduce boilerplate code when writing JSON parsing/generating endpoints.
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parents: 235
diff changeset
203 user.Extent.X2, user.Extent.Y2,
243
d39f897fae16 Made models for email, user and country driver.Valuer to get rid of some conversions.
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parents: 241
diff changeset
204 user.Email,
237
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parents: 235
diff changeset
205 )
186
fe3a88f00b0a Experimental user creation support.
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parents:
diff changeset
206 }
fe3a88f00b0a Experimental user creation support.
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parents:
diff changeset
207
187
51addc0533fe More complete show case for creating users.
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parents: 186
diff changeset
208 if err != nil {
237
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parents: 235
diff changeset
209 return
186
fe3a88f00b0a Experimental user creation support.
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parents:
diff changeset
210 }
fe3a88f00b0a Experimental user creation support.
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parents:
diff changeset
211
237
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parents: 235
diff changeset
212 jr = JSONResult{
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parents: 235
diff changeset
213 Code: http.StatusCreated,
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parents: 235
diff changeset
214 Result: struct {
3771788d3dae Reduce boilerplate code when writing JSON parsing/generating endpoints.
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parents: 235
diff changeset
215 Result string `json:"result"`
314
adceb47920fb Cosmetics. Little less structure bloat.
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parents: 311
diff changeset
216 }{"success"},
186
fe3a88f00b0a Experimental user creation support.
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parents:
diff changeset
217 }
237
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parents: 235
diff changeset
218 return
186
fe3a88f00b0a Experimental user creation support.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
219 }
250
deabc2712634 Implemented /users GET as list of users.
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parents: 243
diff changeset
220
deabc2712634 Implemented /users GET as list of users.
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parents: 243
diff changeset
221 func listUsers(
486
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parents: 442
diff changeset
222 _ interface{},
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parents: 442
diff changeset
223 req *http.Request,
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parents: 442
diff changeset
224 db *sql.Conn,
250
deabc2712634 Implemented /users GET as list of users.
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parents: 243
diff changeset
225 ) (jr JSONResult, err error) {
deabc2712634 Implemented /users GET as list of users.
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parents: 243
diff changeset
226
deabc2712634 Implemented /users GET as list of users.
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parents: 243
diff changeset
227 var rows *sql.Rows
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parents: 243
diff changeset
228
486
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parents: 442
diff changeset
229 rows, err = db.QueryContext(req.Context(), listUsersSQL)
250
deabc2712634 Implemented /users GET as list of users.
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parents: 243
diff changeset
230 if err != nil {
deabc2712634 Implemented /users GET as list of users.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 243
diff changeset
231 return
deabc2712634 Implemented /users GET as list of users.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 243
diff changeset
232 }
deabc2712634 Implemented /users GET as list of users.
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parents: 243
diff changeset
233 defer rows.Close()
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parents: 243
diff changeset
234
442
fc37e7072022 Moved some models used in controllers to to model package because they may be needed elsewhere (e.g. GeoServer config).
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parents: 425
diff changeset
235 var users []*models.User
250
deabc2712634 Implemented /users GET as list of users.
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parents: 243
diff changeset
236
deabc2712634 Implemented /users GET as list of users.
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parents: 243
diff changeset
237 for rows.Next() {
442
fc37e7072022 Moved some models used in controllers to to model package because they may be needed elsewhere (e.g. GeoServer config).
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parents: 425
diff changeset
238 user := &models.User{Extent: &models.BoundingBox{}}
250
deabc2712634 Implemented /users GET as list of users.
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parents: 243
diff changeset
239 if err = rows.Scan(
deabc2712634 Implemented /users GET as list of users.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 243
diff changeset
240 &user.Role,
deabc2712634 Implemented /users GET as list of users.
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parents: 243
diff changeset
241 &user.User,
deabc2712634 Implemented /users GET as list of users.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 243
diff changeset
242 &user.Country,
deabc2712634 Implemented /users GET as list of users.
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parents: 243
diff changeset
243 &user.Email,
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parents: 243
diff changeset
244 &user.Extent.X1, &user.Extent.Y1,
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parents: 243
diff changeset
245 &user.Extent.X2, &user.Extent.Y2,
deabc2712634 Implemented /users GET as list of users.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 243
diff changeset
246 ); err != nil {
deabc2712634 Implemented /users GET as list of users.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 243
diff changeset
247 return
deabc2712634 Implemented /users GET as list of users.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 243
diff changeset
248 }
deabc2712634 Implemented /users GET as list of users.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 243
diff changeset
249 users = append(users, user)
deabc2712634 Implemented /users GET as list of users.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 243
diff changeset
250 }
deabc2712634 Implemented /users GET as list of users.
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parents: 243
diff changeset
251
deabc2712634 Implemented /users GET as list of users.
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parents: 243
diff changeset
252 jr = JSONResult{
deabc2712634 Implemented /users GET as list of users.
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parents: 243
diff changeset
253 Result: struct {
442
fc37e7072022 Moved some models used in controllers to to model package because they may be needed elsewhere (e.g. GeoServer config).
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parents: 425
diff changeset
254 Users []*models.User `json:"users"`
314
adceb47920fb Cosmetics. Little less structure bloat.
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parents: 311
diff changeset
255 }{users},
250
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parents: 243
diff changeset
256 }
deabc2712634 Implemented /users GET as list of users.
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257 return
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258 }
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259
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260 func listUser(
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261 _ interface{},
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262 req *http.Request,
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263 db *sql.Conn,
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264 ) (jr JSONResult, err error) {
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265
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266 user := models.UserName(mux.Vars(req)["user"])
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267 if !user.IsValid() {
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268 err = JSONError{http.StatusBadRequest, "error: user invalid"}
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269 return
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270 }
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271
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272 result := &models.User{
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273 User: user,
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274 Extent: &models.BoundingBox{},
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275 }
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276
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277 err = db.QueryRowContext(req.Context(), listUserSQL, user).Scan(
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278 &result.Role,
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279 &result.Country,
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280 &result.Email,
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281 &result.Extent.X1, &result.Extent.Y1,
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282 &result.Extent.X2, &result.Extent.Y2,
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283 )
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284
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285 switch {
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286 case err == sql.ErrNoRows:
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287 err = JSONError{
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288 Code: http.StatusNotFound,
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289 Message: fmt.Sprintf("Cannot find user %s.", user),
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290 }
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291 return
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292 case err != nil:
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293 return
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294 }
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295
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296 jr.Result = result
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297 return
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298 }